Field surveying and mapping device for forestry investigation
By introducing structures such as support handles, winding mechanisms, and positioning holes into the laser rangefinder, the instability problem of the device during field surveying was solved, achieving stable fixation and extending the service life of the device.
Patent Information
- Application Number
- CN202520036680.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing laser rangefinders are prone to instability in complex environments during field surveying, which can lead to the device slipping out of your hand and being damaged, thus reducing its service life.
A device is designed that includes a support handle, a winding mechanism, a connecting strap, a positioning hole, and a positioning mechanism. The device is fixed to the wrist by the connecting strap, and the winding mechanism is used to store the connecting strap. The cooperation of the positioning hole and the limiting block prevents the device from slipping out of the hand, thereby improving stability and service life.
It effectively prevents the device from slipping out of your hand and falling, improving the stability and lifespan of the device and reducing the risk of damage.
Smart Images

Figure CN223740533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forestry survey technology, specifically to a field surveying device for forestry surveys. Background Technology
[0002] Field surveying equipment is a crucial tool in forestry surveys, ensuring the smooth progress of forestry work. It helps forestry workers obtain necessary data accurately and efficiently. Rangefinders are among the most commonly used devices in forestry surveying and mapping. Their primary function is long-distance distance measurement, and they can also assist in measuring elevation, level, and other parameters. There are many types of rangefinders, including laser rangefinders and electronic rangefinders.
[0003] Most existing laser rangefinders are handheld and moved by staff to survey the environment. However, the field environment is complex and often has uneven roads. As a result, the device is easily affected by tree branches, bushes, and roads, making it unstable. Staff are also prone to dropping the device due to environmental factors, which can easily damage it and reduce its lifespan. Utility Model Content
[0004] The purpose of this invention is to provide a field surveying device for forestry surveys to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a field surveying device for forestry surveys, comprising a surveying body and a detection head mounted on its top, and further comprising:
[0006] A support handle is installed at the bottom of the surveying body. A mounting groove is provided on one side of the support handle. A winding mechanism is installed in the inner cavity of the mounting groove. A connecting strip is provided on the surface of the winding mechanism.
[0007] A positioning hole is formed on the surface of the connecting belt, a connecting plate is fixedly connected to the other end of the connecting belt, a limit block is fixedly connected to one side of the connecting plate, and a positioning mechanism is installed on the surface of the support handle.
[0008] Preferably, the winding mechanism includes a fixing rod fixed to the inner cavity of the mounting groove and a spring fixed to its surface, with a winding disc fixedly connected to the other end of the spring.
[0009] Preferably, the positioning mechanism includes a fixed shell fixed to the surface of the support handle and a compression spring fixed to its inner cavity, with a positioning rod fixedly connected to the other end of the compression spring.
[0010] Preferably, one end of the positioning rod is fixedly connected to a movable rod, and one end of the movable rod is rotatably connected to a locking rod.
[0011] Preferably, the limiting block has a T-shaped cross-sectional design, and the diameter of one side of the limiting block is larger than the inner diameter of the positioning hole.
[0012] Preferably, the height of the connecting plate is greater than the height of the positioning hole cavity, and the connecting plate is used in conjunction with the support handle.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention, through the cooperation of the connecting belt and the winding mechanism, allows the connecting belt to be stored when not in use. The combination of the limiting block and the positioning hole facilitates the connection of the connecting belt to the worker's wrist, thus helping to secure the device. This prevents the device from easily falling to the ground if it slips out of the hand, effectively protecting the device and extending its service life. Furthermore, the positioning mechanism also facilitates the limiting of the connecting belt, making it more stable during use and solving the problems of existing devices being prone to slipping out of the hand and damage. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a partial three-dimensional cross-sectional structural diagram from another perspective of the present invention;
[0018] Figure 4 This is a partial three-dimensional cross-sectional structural diagram of the present invention.
[0019] In the diagram: 1. Surveying body; 2. Detection head; 3. Support handle; 4. Mounting slot; 5. Connecting belt; 6. Winding mechanism; 61. Fixing rod; 62. Spring; 63. Winding disc; 7. Positioning hole; 8. Connecting plate; 9. Limiting block; 10. Positioning mechanism; 101. Fixing shell; 102. Compression spring; 103. Positioning rod; 11. Movable rod; 12. Locking rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4As shown, a field surveying device for forestry surveys includes a surveying body 1, a detection head 2 mounted on the top of the surveying body 1, and a support handle 3 mounted on the bottom of the surveying body 1. With the support handle 3 working in conjunction with the surveying body 1 and the detection head 2, the device can be moved by hand. The surveying body 1 and the detection head 2 work together to scan the surrounding terrain and environment using laser scanning, and then image the data using software. This allows for accurate measurement of the diameter at breast height (DBH) and height of trees and plants, facilitating forestry surveys in the field. A mounting groove 4 is provided on one side of the support handle 3, and a winding mechanism 6 is installed inside the mounting groove 4. A connecting strap 5, made of rubber, is provided on the surface of the winding mechanism 6. Under this function, the connecting strap 5 can be wound up when not in use, making it easy to store. When the connecting strap 5 is needed, it can be removed from the surface of the winding mechanism 6 for convenient use. The surface of the connecting strap 5 has a positioning hole 7, and the other end of the connecting strap 5 is fixedly connected to a connecting plate 8. A limit block 9 is fixedly connected to one side of the connecting plate 8. Under this function, when using the device, the operator can wrap the connecting strap 5 around their wrist, and then the limit block 9 passes through to the other side of the positioning hole 7, thus protecting the device and reducing the possibility of accidental drop during use, effectively reducing the risk of the device falling. In cases of damage, this effectively extends the lifespan of the device. The limiting block 9 has a T-shaped cross-section design, with one side's diameter larger than the inner diameter of the positioning hole 7. This design allows the limiting block 9 to pass through to the other side of the positioning hole 7 when needed, as the connecting strap 5's material can alter the diameter of the positioning hole 7, enabling the limiting block 9 to pass through. The shape of the positioning hole 7 then limits the limiting block 9 after it returns to its original position, preventing it from easily moving out. There are several positioning holes 7, allowing the device to be used according to the operator's wrist and the appropriate positioning hole 7. The device is self-adjusting. A positioning mechanism 10 is installed on the surface of the support handle 3. The positioning mechanism 10 can limit the connection belt 5 when it is pulled out, so that it will not easily return to its original position when pulled out for use. This avoids the connection belt 5 being in a tense state with the worker's wrist due to the action of the winding mechanism 6, which may cause discomfort to the worker. This effectively improves the applicability of the device. The height of the connecting plate 8 is greater than the height of the inner cavity of the positioning hole 7. The connecting plate 8 works in conjunction with the support handle 3. Under this action, the connecting plate 8 can form a block with the surface of the support handle 3, so that the connection belt 5 will not be completely inserted into the interior of the mounting groove 4. This makes it convenient for the worker to take the connection belt 5 out of the interior of the winding reel 63 for use.
[0022] The winding mechanism 6 includes a fixed rod 61 fixed in the inner cavity of the mounting groove 4. A spring 62 is fixedly connected to the surface of the fixed rod 61. A winding disc 63 is fixedly connected to the other end of the spring 62. The inner wall of the winding disc 63 is fixedly connected to one end of the connecting belt 5. The winding disc 63 works in conjunction with the connecting belt 5. Under the action of the spring 62, the winding disc 63 can rotate in the opposite direction and return to its original position after rotation, which makes it convenient to store the connecting belt 5 and to remove the connecting belt 5 from the inside of the winding disc 63, making it more convenient for workers to use the connecting belt 5.
[0023] The positioning mechanism 10 includes a fixed shell 101 fixed to the surface of the support handle 3. A compression spring 102 is fixedly connected to the inner cavity of the fixed shell 101. A positioning rod 103 is fixedly connected to the other end of the compression spring 102. The surface of the positioning rod 103 is slidably connected to the inner wall of the fixed shell 101, and the surface of the positioning rod 103 is slidably connected to the inner wall of the positioning hole 7. Under this action, the positioning rod 103 can be inserted into the interior of the positioning hole 7 to achieve the effect of limiting the connection band 5, so that the connection band 5 will not easily move. A movable rod 11 is fixedly connected to one end of the positioning rod 103. The other end of the movable rod 11 extends through to the outside of the fixed shell 101 and is movably connected to the inner wall of the through-hole. One end of the movable rod 11 is rotatably connected to the locking rod 12. The surface of the locking rod 12 is movably connected to the surface of the fixed shell 101. Under this action, when it is necessary to limit the positioning rod 103, the movable rod 11 can be pulled to move the positioning rod 103 into the interior of the fixed shell 101. Then the locking rod 12 can be rotated to make it contact the surface of the fixed shell 101, so that the positioning rod 103 will not easily contact the surface of the connecting strip 5, thus facilitating the storage of the connecting strip 5.
[0024] It is worth noting that the technical features proposed in this technical solution, such as the surveying body 1, the detection head 2, and the support handle 3, should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.
[0025] Working principle: First, when in use, the connecting plate 8 is pulled to remove the connecting strip 5 from the surface of the winding reel 63. Then, the operator pulls the connecting strip 5 to a suitable length and rotates the locking rod 12 so that it does not contact the surface of the fixed shell 101. Then, under the action of the compression spring 102, the positioning rod 103 can be inserted into the positioning hole 7, thereby limiting the connecting strip 5 and preventing it from moving easily under the action of the winding mechanism 6. Then, the operator wraps the connecting strip 5 around the wrist and moves the limiting block 9 to the corresponding positioning hole 7. Pressing the limiting block 9 makes it pass through to the other side of the positioning hole 7, thereby using the connecting strip 5 to conveniently limit the device and reduce the possibility of it falling. When not in use, the contact between the positioning rod 103 and the positioning hole 7 and the limiting block 9 and the positioning hole 7 is released. Then, with the cooperation of the spring 62, the winding reel 63 can store the connecting strip 5.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A field surveying device for forestry surveying, comprising a surveying main body (1) and a detection head (2) mounted on the top of the surveying main body (1), characterized in that, Also include: The support handle (3) is installed at the bottom of the surveying main body (1), one side of the support handle (3) is provided with a mounting groove (4), the inner cavity of the mounting groove (4) is provided with a winding mechanism (6), the surface of the winding mechanism (6) is provided with a connecting belt (5); The positioning hole (7) is opened on the surface of the connecting belt (5), the other end of the connecting belt (5) is fixedly connected with a connecting plate (8), one side of the connecting plate (8) is fixedly connected with a limiting block (9), the surface of the support handle (3) is provided with a positioning mechanism (10).
2. The field surveying and mapping device for forestry surveying according to claim 1, characterized in that: The winding mechanism (6) includes a fixed rod (61) fixed in the inner cavity of the mounting groove (4) and a clock spring (62) fixed on the surface thereof, the other end of the clock spring (62) is fixedly connected with a winding disc (63).
3. The field surveying and mapping device for forestry surveying according to claim 1, characterized in that: The positioning mechanism (10) includes a fixed shell (101) fixed on the surface of the support handle (3) and a compression spring (102) fixed in the inner cavity thereof, the other end of the compression spring (102) is fixedly connected with a positioning rod (103).
4. The field surveying and mapping device for forestry surveying according to claim 3, characterized in that: One end of the positioning rod (103) is fixedly connected with a movable rod (11), one end of the movable rod (11) is rotatably connected with a clamping rod (12).
5. The field surveying device according to claim 1, wherein: The cross-sectional shape of the limiting block (9) is T-shaped structure, the diameter of one side of the limiting block (9) is greater than the inner diameter of the positioning hole (7).
6. The field plotting device for forestry surveying according to claim 1, wherein: The height of the connecting plate (8) is greater than the height of the inner cavity of the positioning hole (7), and the connecting plate (8) is used in cooperation with the support handle (3).